|
Search: id:A076776
|
|
|
| A076776 |
|
a(0) = 1, a(1) = 2, a(2) = 5; for n > 2, a(n) = a(n-1)*a(n-2). |
|
+0
1
|
|
| 1, 2, 5, 10, 50, 500, 25000, 12500000, 312500000000, 3906250000000000000, 1220703125000000000000000000000, 4768371582031250000000000000000000000000000000000
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
a(n) = 2^fibonacci(n-2)*5^fibonacci(n-1)for n>=2, fibonacci(n)=A000045(n). - Vladeta Jovovic (vladeta(AT)eunet.rs) and Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Nov 16 2002
|
|
MAPLE
|
with(combinat, fibonacci):A076776 := n->2^fibonacci(n-2)*5^fibonacci(n-1);
|
|
CROSSREFS
|
Cf. A000045, A000301, A010098, A010099.
Sequence in context: A018472 A082593 A124664 this_sequence A020755 A018503 A018535
Adjacent sequences: A076773 A076774 A076775 this_sequence A076777 A076778 A076779
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Emily Shields (emilyshields_2001(AT)hotmail.com), Nov 14 2002
|
|
EXTENSIONS
|
More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Nov 16 2002
|
|
|
Search completed in 0.002 seconds
|
